property Calc.Message(Msg as MessageEnum) as String
Retrieves or sets a value that indicates the control's message.

TypeDescription
Msg as MessageEnum A MessageEnum expression that indicates the value being changed
String A string expression that indicates the message being changed. It supports built-in HTML format.
Use the Message property to customize the string being displayed by the control when an error occurs. 

The following sample changes the "Cannot divide by zero.", that's displayed when the calculator performs a division by zero:

Calc1.Message(exCannotDivideByZero) = "Divide by zero."
The Message property supports built-in HTML format like follows: